Exemple #1
0
void Dispatcher::batchTasksWalk( Dispatcher::TaskBatchPtr parent, const ExecutableNode::Task &task, BatchMap &currentBatches, TaskToBatchMap &tasksToBatches, std::set<const TaskBatch *> &ancestors )
{
	TaskBatchPtr batch = acquireBatch( task, currentBatches, tasksToBatches );

	TaskBatches &parentRequirements = parent->requirements();
	if ( std::find( parentRequirements.begin(), parentRequirements.end(), batch ) == parentRequirements.end() )
	{
		if ( ancestors.find( batch.get() ) != ancestors.end() )
		{
			throw IECore::Exception( ( boost::format( "Dispatched nodes cannot have cyclic dependencies. %s and %s are involved in a cycle." ) % batch->node()->relativeName( batch->node()->scriptNode() ) % parent->node()->relativeName( parent->node()->scriptNode() ) ).str() );
		}

		parentRequirements.push_back( batch );
	}

	ExecutableNode::Tasks taskRequirements;
	task.node()->requirements( task.context(), taskRequirements );

	ancestors.insert( parent.get() );

	for ( ExecutableNode::Tasks::const_iterator it = taskRequirements.begin(); it != taskRequirements.end(); ++it )
	{
		batchTasksWalk( batch, *it, currentBatches, tasksToBatches, ancestors );
	}

	ancestors.erase( parent.get() );
}
Exemple #2
0
IECore::MurmurHash Dispatcher::batchHash( const ExecutableNode::Task &task )
{
	MurmurHash result;
	result.append( (uint64_t)task.node() );

	if ( task.hash() == MurmurHash() )
	{
		return result;
	}

	const Context *context = task.context();
	std::vector<IECore::InternedString> names;
	context->names( names );
	for ( std::vector<IECore::InternedString>::const_iterator it = names.begin(); it != names.end(); ++it )
	{
		// ignore the frame and the ui values
		if ( ( *it != g_frame ) && it->string().compare( 0, 3, "ui:" ) )
		{
			result.append( *it );
			if ( const IECore::Data *data = context->get<const IECore::Data>( *it ) )
			{
				data->hash( result );
			}
		}
	}

	return result;
}
Exemple #3
0
Dispatcher::TaskBatch::TaskBatch( const ExecutableNode::Task &task )
	: m_node( task.node() ), m_context( task.context() ), m_frames(), m_requirements()
{
	m_blindData = new CompoundData;

	if ( task.hash() != MurmurHash() )
	{
		m_frames.push_back( task.context()->getFrame() );
	}
}
Exemple #4
0
void Dispatcher::batchTasksWalk( Dispatcher::TaskBatchPtr parent, const ExecutableNode::Task &task, BatchMap &currentBatches, TaskToBatchMap &tasksToBatches )
{
	TaskBatchPtr batch = acquireBatch( task, currentBatches, tasksToBatches );

	TaskBatches &parentRequirements = parent->requirements();
	if ( ( batch != parent ) && std::find( parentRequirements.begin(), parentRequirements.end(), batch ) == parentRequirements.end() )
	{
		parentRequirements.push_back( batch );
	}

	ExecutableNode::Tasks taskRequirements;
	task.node()->requirements( task.context(), taskRequirements );

	for ( ExecutableNode::Tasks::const_iterator it = taskRequirements.begin(); it != taskRequirements.end(); ++it )
	{
		batchTasksWalk( batch, *it, currentBatches, tasksToBatches );
	}
}
Exemple #5
0
static ExecutableNodePtr taskNode( const ExecutableNode::Task &t )
{
	if ( ConstExecutableNodePtr node = t.node() )
	{
		return boost::const_pointer_cast<ExecutableNode>( node );
	}

	return 0;
}
Exemple #6
0
static ContextPtr taskContext( const ExecutableNode::Task &t, bool copy = true )
{
	if ( ConstContextPtr context = t.context() )
	{
		if ( copy )
		{
			return new Context( *context );
		}

		return boost::const_pointer_cast<Context>( context );
	}

	return 0;
}
Exemple #7
0
Dispatcher::TaskBatchPtr Dispatcher::acquireBatch( const ExecutableNode::Task &task, BatchMap &currentBatches, TaskToBatchMap &tasksToBatches )
{
	MurmurHash taskToBatchMapHash = task.hash();
	taskToBatchMapHash.append( (uint64_t)task.node() );
	TaskToBatchMap::iterator it = tasksToBatches.find( taskToBatchMapHash );
	if ( it != tasksToBatches.end() )
	{
		return it->second;
	}

	MurmurHash batchMapHash = batchHash( task );
	BatchMap::iterator bIt = currentBatches.find( batchMapHash );
	if ( bIt != currentBatches.end() )
	{
		TaskBatchPtr batch = bIt->second;

		std::vector<float> &frames = batch->frames();
		const Plug *dispatcherPlug = task.node()->dispatcherPlug();
		const IntPlug *batchSizePlug = dispatcherPlug->getChild<const IntPlug>( g_batchSize );
		size_t batchSize = ( batchSizePlug ) ? batchSizePlug->getValue() : 1;

		if ( task.node()->requiresSequenceExecution() || ( frames.size() < batchSize ) )
		{
			if ( task.hash() != MurmurHash() )
			{
				float frame = task.context()->getFrame();
				if ( std::find( frames.begin(), frames.end(), frame ) == frames.end() )
				{
					if ( task.node()->requiresSequenceExecution() )
					{
						frames.insert( std::lower_bound( frames.begin(), frames.end(), frame ), frame );
					}
					else
					{
						frames.push_back( frame );
					}
				}
			}
			
			tasksToBatches[taskToBatchMapHash] = batch;
			
			return batch;
		}
	}

	TaskBatchPtr batch = new TaskBatch( task );
	currentBatches[batchMapHash] = batch;
	tasksToBatches[taskToBatchMapHash] = batch;
	
	return batch;
}
Exemple #8
0
static unsigned long taskHash( const ExecutableNode::Task &t )
{
	const IECore::MurmurHash h = t.hash();
	return tbb::tbb_hasher( h.toString() );
}